Honda Acura NSX 1991 Service Manual page 457

Does the meter jerk toward 0 V
only when the transmission
shifts?
Turn the ignition switch OFF.
Disconnect the A connector from
the PGM-FI ECU.
Check for continuity on the PNK
wire between the D16 terminal on
the A/T control unit and the A 16
terminal on the PGM-FI ECU.
Is there continuity?
Y E S
Check for continuity on the PNK
wire between the D 16 terminal on
Is there continuity?
N O
Check for loose control unit con-
nectors If necessary substitute
a know;-good unit aid recheck.
From page 14-68
Check for continuity on the PNK
wire between the D 16 terminal on
Is there continuity?
N O
Check for loose control unit con-
If necessary, substitute
a known-good unit and recheck.
I
NO
Repair open in PNK
wire.
Repair short in PNK
wire.
Y E S
Repair short in PNK
w i r e .
I